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Simplifying 86 + -7x = 38x + -21 Reorder the terms: 86 + -7x = -21 + 38x Solving 86 + -7x = -21 + 38x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-38x' to each side of the equation. 86 + -7x + -38x = -21 + 38x + -38x Combine like terms: -7x + -38x = -45x 86 + -45x = -21 + 38x + -38x Combine like terms: 38x + -38x = 0 86 + -45x = -21 + 0 86 + -45x = -21 Add '-86' to each side of the equation. 86 + -86 + -45x = -21 + -86 Combine like terms: 86 + -86 = 0 0 + -45x = -21 + -86 -45x = -21 + -86 Combine like terms: -21 + -86 = -107 -45x = -107 Divide each side by '-45'. x = 2.377777778 Simplifying x = 2.377777778
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